OAKLAND, Calif. (AP) Yusmeiro Petit has plenty of familiarity with the Bay Area, and he is confident that pitching alongside old San Francisco teammate and pal Santiago Casilla in Oakland's bullpen will make for a smooth transition.

Petit finalized his $10 million, two-year contract with the A's on Thursday after passing a physical.

"It's nice to come to an organization that makes you comfortable," he said. "It will help me get used to the team and the culture."